# Fields and functions of {Block} objects for the HotPath heuristic.
# Last edited on 2021-05-10 15:23:29 by jstolfi

import block_hp_IMP
import block
import contact

# Usage status of block in current path:

def used(bc):
  # A mutable bool that tells whether {bc} has been used -- that is,
  # whether one of its choices has been included in the current prefix path {Q}.
  return block_hp_IMP.used(bc)
  
def set_used(bc, us):
  # Sets the {used(bc)} attribute to the bool value {us}.
  block_hp_IMP.set_used(bc, us)
  
# Contacts of block:

def add_contact(bc, ct):
  # Adds the {Contact} object {ct} to the contacts list of blokc {bc}. 
  block_hp_IMP.add_contact(bc, ct)
  
def get_contacts(bc):
  # Gets a copy of the contacts list of blck {bc}.
  return block_hp_IMP.get_contacts(bc)

# Seams of block:

def get_seams(bc):
  # Returns a  pair {SMSP} of lists such that {SMSP[i]} has 
  # evey {seam.Seam} object {sm} from the input list {SMS}
  # with {seam.side(sm,i) == bc}.
  return block_hp_IMP.get_seams(bc)  

def set_seams(bc, SMSP):
  # Sets the {seams(bc)} attribute to the par of lists {SMSP}.
  block_hp_IMP.set_seams(bc, SMSP)